Added new test for dlopen which is failing for MIPS.

Change-Id: I2240faefb387a11647f49b1a15699907a40f98c1

tests/dlopen_test.cpp

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include <dlfcn.h>
+
+static bool gCalled = false;
+extern "C" void DlSymTestFunction() {
+  gCalled = true;
+}
+
+TEST(dlopen, dlsym_in_self) {
+  void* self = dlopen(NULL, RTLD_NOW);
+  ASSERT_TRUE(self != NULL);
+
+  void* sym = dlsym(self, "DlSymTestFunction");
+  ASSERT_TRUE(sym != NULL);
+
+  void (*function)() = reinterpret_cast<void(*)()>(sym);
+
+  gCalled = false;
+  function();
+  ASSERT_TRUE(gCalled);
+}